Add rust send_recording snippet

Author: oxkitsune

docs/snippets/all/concepts/send_recording.rs

@@ -0,0 +1,35 @@
+//! Send a `.rrd` to a new recording stream.
+
+use rerun::external::re_chunk_store::{ChunkStore, ChunkStoreConfig};
+use rerun::external::re_log_types::{LogMsg, SetStoreInfo};
+use rerun::external::re_tuid::Tuid;
+use rerun::VersionPolicy;
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    // Get the filename from the command-line args.
+    let filename = std::env::args().nth(2).ok_or("Missing filename argument")?;
+
+    // Load the chunk store from the file.
+    let (store_id, store) =
+        ChunkStore::from_rrd_filepath(&ChunkStoreConfig::DEFAULT, filename, VersionPolicy::Warn)?
+            .into_iter()
+            .next()
+            .ok_or("Expected exactly one recording in the archive")?;
+
+    // Use the same app and recording IDs as the original.
+    if let Some(info) = store.info().cloned() {
+        let new_recording = rerun::RecordingStreamBuilder::new(info.application_id.clone())
+            .recording_id(store_id.to_string())
+            .spawn()?;
+
+        new_recording.record_msg(LogMsg::SetStoreInfo(SetStoreInfo {
+            row_id: Tuid::new(),
+            info,
+        }));
+
+        // Forward all chunks to the new recording stream.
+        new_recording.send_chunks(store.iter_chunks().map(|chunk| (**chunk).clone()));
+    }
+
+    Ok(())
+}

docs/snippets/snippets.toml

@@ -101,7 +101,6 @@ features = [
 ]
 "concepts/send_recording" = [ # No output
   "cpp",
-  "rust",
 ]
 "concepts/static/log_static" = [ # pseudo-code
   "py",